Ore, rock, and the like crushing machine



Aug. 4,1942. n

ORE, ROCK AND THE LIKE CRUSHVING MACHINE Filed Sept. 10-t 1.940 3 Sheetsl-Sheet 1 .lili-l. mmol;

J. GQMALoNl-z 2,291,910 Y i I Y Mss UNNLL- Mw/VE i Y 'ATTORNEY Aug. 4, 1942. J. G. MALONE ORE, ROCK AND THE` LIKE CRUSHING MACHINE Filed Sept. 1Q, 1940 3 Sh'eetsPSheet 2 ATTORNEY gum/vm MMO/v5 @if BY Aug 4, 1942. J. G. MALQNE I 2,291,910

ORE, ROCK AND THE LIKE GRUSHING MACHINE Filed sept. 1o, 1940 3 sheets-sheet 3 zNvENToR.

BY J MES 60N/veu Maw/v5 M WATTORNEY f plant building and crushed product removal Vand oi' the objectsl and advantages thereof, ref- .eneenot no e I2,291,910

I 'UNi-TED STATI-:sll VPAT'rsi-NT crevice I oannoomamzilliilra CRUSH-ING y Y' v A Y I James AMalone, St. George, Staten e island-YN. Y. Y Appuceucn september 1o, i940, serie! No.' 356.152

A s claims. v(ci. ca -'10) Y This invention relates to new and useful im- Stillfiurther'the invention contemplates supprovements in ore, rock and the like crushing porting the tubular crushing bowl'in a certain and reduction machines 'of various. characters vmanner soj that-as it goes through its wave-like which are ofparticularly large size. circular oscillatory path itvproduces a certainv The invention` proposes the construction of a type of crushing' action, more advantageous than machine as mentioned which is Icharacterized by '"fithe' present vtype of eccentric actionemb'odied in a' tubular crushing bowl supported within a tuexisting and known machines. inherent adbularhousing to move in a circular oscillatory vantage overA existing machines should result pathand cooperativeiwith an axial stationary Yfrom the particular movement vof -th'e'crushing crushing head. and means for moving said crushbowl. It willbe notedthat on the side o! the ing bowl wave-like in said oscillatory path to `machine where crushing is being ell'ected, as the produce crushing action between said crushing V surface of: the bowl approaches the contiguous bowl-and crushing head. surface ofthe crushing head,Y the movement of Advantages of the machine constructedsubthe bowl is downward, while 'radiallyapproachstantially as herein described over existing mall5 ing the xed crushing head.v This motion should 'chinesfor similar services are: (1) less weight produce a'shearing stress in the material Caught for equal capacity therefore lower initial cost; between the two crushing members. (2) no obstruction across charging entrance such Still further thev invention proposes to kprovide as spider .to cause chokes and bridging; (3) no the crushing bowland the crushing head with heavy high-speed moving parts as eccentric and liner members which may be replaced when they driving gear: (4) eccentric pit, eccentric jack and become worn.' It is also proposed to adjustably eccentric car not required; (5) crushing rate (caarrange one ci thecrushingparts. preferablypacity) adjustable; (6) predetermined safety'adthe crushing head. so that it may be adjusted to iustment against destruction ofmechanism due compensate for some degree of wear-withoutre--ito tramp iron; (7) central discharge; (8) com- 25 111111118 newlinersf f paratively less vertical height Vof machine. Still further the invention proposes the .con-

Due to low velocity and short movement ornnstruction of o machine asmentioned which is' pulse mechanism maintenance costs. should be simple and durable and which may be manufacless'. Due torelativeiy low height and central -tured and sold atalower cost. e

dischargeaV substantial reduction in crushing .FOr furthercompmhension of thofilivention;

` 'equipment costsshould be. en'ected since the ver- @rence Will be had' to the' OIIOWDEv ydeiiiililitiol'i tical lift and length oi removal conveyors should and accompanyingdrawings.' and tothe append- -be less, ed claims in which the'various novel features of stm further it is proposed to so construct vthe as the invention aremore particularly set' forth. crushing machine that the tubular crushing bowl In the accompanying drawings forming'. a'. ma-

may be moved in its circular oscillatory path teriulpart of this disclosure:` with numerous types and kinds of devices, The Fig. 1 is a vertical sectional view of an ore, rock preferred form, in accordance with this mvon.- and the like crushing machine constructed in tion, is to provide a plurality of impulse devices 4o accordance with this invention. 'Y f arranged around the tubular housing of the ma- Fig 2' iS a fragmentary horizontal `'sectional chine. Y view taken on the line 2-i'2 of Fig, 1.

In one form of the invention it is proposed that FE- 3 iSva fragmentary 'eliivtonal View-01.3

each impulse device be connected by a toggle portion of Fig. 1. member with the outer periphery of the crushi5 Fig.'4' is a fragmentary enlarged detailed'view ing bowl to transfer the impulses thereofto move of a portion of Fig. 1. Y the crushing bowl wave-like in the circular osci1V Fig- 5 is a longitudinalsectional viewy of'one f mim-y path mentioned, of a plurality of two-way valves used inthe de- While two particular types of impulse devices vice. Y will be disclosed, it should be clearly borne in F18. 6 is a side elevational view of a lcertain mind that the invention is adcptamc' to any distributor used in the device-and related parts Vnumber of different impulse devices. as fluid schemat1callyshown.- Y

pressure cylinder, internal combustion cylinder, Figis a fraEmoim'y plan view'of Fig. 6.. cam action, solenoid or synchronized electromag- Fig- 3 iS a fragmentary horizontal sectional netic impulses, and others. Y view similar to Fig. 2 but illustratingv an` ore, rock,

or the like crushing machine constructed in accordance with another form of this invention. Fig. 9 is a side elevational view of a certain distributor used in this form of the invention,

and related parts schematically illustrated.

The ore. rock and the like crushing machine in accordance with this invention includes a tubular housing lll made from a plurality of sections secured together. There is a base section no secured by bons H toy e. bottom intemiediase section Ilb which in turn is secured by Aadditional bolts ii to a top intermediate section itc Y which in turn is secured by" additionalbolts' Il to a top section lild. The housing Il is adapted to be supported on a suitable concrete-foundation i2 for the machine. .th wl A tubular crushing bowl I3 is disposed in the housing ill and is movably supported to be capable of moving in a circular oscillatory path. More specically, the top.-

intermediate section itc; of 'the housing is acomplementary bearingfsurface arranged on Vtheperiphery of thecrushing-jbowl I3. vThis complementary surface is also infthe shape ofa `sone of a sphere. This bearing is located at the top'portionofthe crushing bowl I3. .The arrangement is suchthat the crushing bowl'may be moved through a circularoscillatory path, preferably by moving the bottom portion therey formed with a bearing surface Il in theshapef of a sone of a sphere which is cooperative with r curely upon the top edge of thevhub 2l irrespective of foreign small particles which may be on the top edge of the hub. The crushing head il is provided with a removable liner 2t which is capable of being removed and replaced when vit .becomes worn. The liner 26 is adapted to crush cre, rocks, and thelike in conjunction with the liner li of the crushing bowl I3. There is a small annular space 21 between the bottom portions of the liners i! and. comprising the' throat of the crushing machine and through which the crushedore, rock and the like nally passes. lThe liner il has an inner surface of substantially inverted frusta-conical shape which is cooperative with the frusta-conical shape of -the liner 26. The crushing head It is provided with a removablel cap 28 which normally covers a'tapped opening 2l in the top end thereof. This tapped opening may be used to threadedly receive a hoisting device-by which the crushing 'head may be lifted -out'from the hub 20 when 'Ihe crushing bowl i3 is provided with'a rela tively thin bottom nangeportion i3d about which a ring 30visl0oselyfmounted. This ringfhas a bottom face of'a shape resembling the zone of a sphere, and is cooperativewith afcomplemem liner member I3 is removably mountedupon Y the inner face ofthe crushing bowlll. A removable liner member It is mounted upon the inner face of the top section Illd of the tubular housing. Linersli and I8 are substantially in Yalignmentvvith each other and comprise the only ,l parts of the housing and crushing bowl touched by the ore and like-passing through the machine. When these liners Vbecome worn, they may be tary shaped face of 'a projecting portion ylilou on the bottom section ila ofthe housing. These spherical faces have their center coinciding with the center of the spherical surface Il. This common center is indicated in 1 by reference character C. The arrangement is such that when the crushing bowl i3 moves inL its circulaxoscillatoryr path the ring 2l will move correspondingly but at all timesjwill close the pas- Y sage which would exist `between the flange i3d replaced.- Other portions of the machine will f not be subjected tovwear due to coming into contact with the orerock or 'the like material being crushed, except for a complementary crushing head which is also provided with a liner as hereinafter more fullyexplained The complementary crushing headv referred to y in the previous paragraph is indicated on the drawings by reference numeral It. It is of sub- Y stantially ifrusto-conicalshape,V and stationarily Y v supported axially of thecrushing bowl I3. More specifically the bottomsection lila'of the housing is provided with a plurality of inwardly extending web yportions i9 which support a tubu- 1er exu1 hub portion zo; This hub portion zo has aclosed bottom side: 20a which is formed with a and the adjacent portions of the section .Illa oi the housing, This ring 3l ktherefore. prevents dust and dirt passing upwards andgetting behind the crushing bowl i3. Thereis an annular space 3l betweenlthe top edge portion of the crushingbowl I3 and the .adjacent portion of the top section llld of the housing. It is kcontemplated that this annular space 3| be packed Ib of the housing'and arranged completely.

aroundthe housing. In the particular design shown on the drawings the machineis adapted to have eleven of. these impulse-r devices. It

small opening 2i at its center., The bottom 20a is provided with ashoulder 22 upon which an annular shim member 2 3 rests. This yshim member 23 supports the crushing head i8.v When deshed, thecrushing head may be lifted out from the hub and additional Vshim members added so that when the crushing head is Vreplaced it will be supported at a slightly higher elevation, thus making adjustment for wear as hereinafter moreV fully explained. I Y y The crushing head .I8 is provided with a bottom cylindrical portion i8a which engages the inner face of the hub 20. This cylindrical pori tion ita continues upwards into an .outwardly directed shoulder 24 which rests upon thetop edge of the hub 20. This shoulder- Visformed with a groove 25 to reduce Vits area and to form a'cavity 'so that it is capable of resting more seshould be clearly` .understood that this is merely illustrative, since a larger or smaller number may vjust as well be used.

vEach of these impulse devices A includes a cylinder 33 which is provided with anges 34 by which it is attached tohanges :s and u formed upon the bottom'intermediate housing 65 section lub. The head of the oylnider uis closedwith a suitable head piece 31 .which is provided with a plurality of radial ribs unto reinforce it. Within each .cylinder 33 there lis a piston 39 which is arranged to move a short distance, for example an inch would be suillcient. Of course this distance depends f upon design. It depends upon the amplitude that the crushing bowl i3 is supposed to move. Thepistons 39 are provided with the usual piston rings It. Each piston is also provided with a piston rod of the crushing bowl I3.

2,291,91o `V ll which extends outwards from the rear ofthe cylinderv 33. A packing gland 42 surroundseach 1 piston rod 4I and is mounted upon the inner end of the cylinder Il to assist in packing the cylinder.

Each piston rod 4i is provided with au enlarged head lla which extends into a bore formed in a boss M formed upon the side of The rear side of each cylinder 3s is provided -with a drain 48 adapted to drain away any fluid or gas which may leak past the piston i8. The

uid from a pipe 5I connected with a main supply pipe 52havingY a source of fluid pressure 52.

,Each two-way valve 5l) is also provided with a discharge pipe 53 connected with a main disl charge pipe 54 and 54'. Each two-way valve suis provided with a handle-t5 yity-.which it may be Vsuitably operated.v The 1 important details of this valve areshown in Fig. 5. In one position of the valve the pipe-line 5| is connectincludes a pair of solenoids H and 58 on opposite sides of the handle 55 and provided upon the outer face Il of one impulse" device A represented by'nui' nieral "1" in Fig'. 'I has been illustrated in Figs.

- are eleven auch circuits, one for each, of the 6 and 7, but it vlshould be borne 1n mind thattheie eleven impulse devices A. A supply circuit 1I has one ofits high tension leads 10a connected with thefcontacts and Ii as shown in'Flg. 'I so as to be a common current supply for the eleven circuits above mentioned. Each pair ofV superimposed contacts Gland fis connected in the following way with each pair of solenoids 51 and 58 of the elevencir'cuits. There is a lead 10b from a top contact '68 of`a` pair of s .uberimposedjcontacts and' I Sconnecting one of the solenoids" in series in the circuit-10, through lead 10d., There is anotheileady 10c Vi'rom a 's bottom contact 69 ot said pair of contacts con- "front of each cylinder 33 is yprovided 'with an inlet pipe 49 for an operating'fluid. Each pipe 49 is connected with atwo-wayV valve l0.` Each two-way'valve 50 receives a'supply of operating Hed with the pipe line I S. In fthe other position,

the pipeline V49* is connected with the pipe line in position Vinwhich the with a common or connected core 59, connected with the handle 55, as clearly shown in Fig. 4. There is a fastening element 60 projecting from the core 59- and working in a slot Il formed in the handle. The arrangementis such that one of the solenoids 51 and 58 may. be successively.

energized to move the handlellfrom Vone of its positions to the vother and then back, etc.,

l as will be more. fully described. The solenoids v 51 and Snare automatically controlled by a distributor mechanism shown in Figs.' 6 and "l. 4

The distributor mechanism includes a variable speed electric motor SZYdriv'ing a reduction unit 63 which in turn rotates a distributor head $4. This distributor head 8l. is provided with a pair of contacts 85 and B6 suitably radially positioned from each other depending upon design. These contacts are of diiierent lengthsv and at diilerent elevated positions, and are cooperative with different pairs of complementary contacts 68 and'ES. An annular ring 61 is stav tionarily supported axially by the distributor head 64. Thisannular ring 61 has apluralityof top contacts 68, one for each of the impulse devices A. The annular member 61 is'also provided with 'by numerals 1 to 11 inclusive.

Each pair of solenoids 5,1 and 58 of` each imthe pistons 3s of the impulse devices A repref sented by the pair of superimposed contacts IlV necting the othersolenoid in series in the circuit 10 through lead 10d. This constructionv is repeated VVfor the 'eleven devicesA.V

The operation o fthedevlcejis as follows: To properly understandtheoperatio'n it :must

rst be assumed that the' distributor hea-f s is .in the positionV illustrated 1n Figs: 'gga'nd '1. when it is in this position its contact-tramping contact withthe bottoms!" the superimposed contacts I8 and 'knownas'pair No. 1 as shownin Fig. 'I. The contacty l5 of the distributor head $4 is just ready to make contact with the top contact of superimposed pair No. 7 of the contacts 68 and 68 shown'in'Fi'gl 7.

The distributor vhead 8l' isV being ,drivencounterclockwise.A When the distributor head 6I is .l f1 position the solenoids 5 8 of impulse devices Arep- Automatic VVmechanism is provided for antomatically operating each handle 55 preach twoway valve lill.` The mechanism for each valve resented byNbs. 2 to 6 inclusive in 'Z are two-way valves lare connecting the pipes 49 and 5l.

:A suitabienuid, emerges or' iiquid, is supplied under pressureby a suitable pump, or other means to the supply pipe 52 and therefore to and 68. indicated by numerals 2 to 6 inclusive in Fig. 7. One of these 'pistonstherefore is in their forward position under pressure,v and the others are moving forwards under pressure. The

.crushing bowl I3 will 'therefore be advanced radially toward the contiguous side'of the stationary crushing head i8 since the yimpulse de- "vices A Nos. 2 to 6 inclusive functioning, areV aligned on the same side of the machine, while the impulse devices A on oppositeside ofthe machine are inactive and being returned `to a retarded position. Now then, as thedlstributor head 64 rotates the contact 85 will engage the contact-68 of pair of superimposed contacts No. v

'1, as shown in Fig. 7, so as to energize the solenoid 58 of impulse device A represented by No. 7.

"llhis solenoid 58 drivesV the two-way valve lll '7 causing the solenoid 61 of this'impulsedevice to become energized and causing v the two-way valve of this impulse device to operate toppen the cylinder thereof to exhaust. InV this wayj as the distributor head 6l turns the impulse devices A will function in wave-like manner,`V the wave moving around the various impulse devices A which are .around the housing i0. As-the'mpispulsedevice A is connected with a superimposed tons of the impulsev devicesy Aare moved kout- 3' Vwir o; raccontate and n. For purpose or illustration. A`one pair ofi the solenoids" and wards, under pressure. the crushing bowl Il will be similarly moved and it `will travel in wavelike fashion in its circular oscillatory path. The speed of operation of the crushing bowl Il may be controlled by varying the speed of the variable speed motor l2.

Note that the sum-of the forces of half oi theimpulse devices A are continuously being applied to the sideof the bowl i3 actively crushing, as the crushingmotion rotates around the stationary crushing headv Il. I

The individual pressure applied to each impulse device A is restricted to give an aggregate (total) force on oneV sideoi the crushing bowl which will satisfactorily crush the ore or other substances but will notbe suflicient todestroy the machine mechanism should stray iron be deposited between the crushing members. The

bowl i3 arresting a portion `of the oscillation of the crushing bowl, if it is or a size too large to work its way through the crushing bowl I3 and be discharged through the annular space Attention isalso 'called to the particular 'crushing action. .'lhe ore, rocks and the like which enter vthe top of the lcrushing bowl I3 will come to a position and rest against -the faces of the liner ZI and the liner i5. The crushing bowl i3' moves in a certain path which is an oscillatory path as well as a circular path. The material being 4crushed will be crushed ina slicing fashion. The motion of the crushing bowl I3 is a nutation about the center possessed by the spherical 'bearing surface il and a com- Y ponent of this motion is vertical. Since the bowl `Vtramp iron will merely remain in the crushing" has a vertical component, while the head II' has no such vertical component of motion, there v is a sliding or rubbing action as well as a com- .weight for a certain capacity will be lighter than those crushing machines having heavy eccentric' devices, and having mechanical equipment for driving these eccentric devices. In view of the fact that the impulse devices -A are arranged about the housing in, thesoverall height of the new crusher will be relatively small. Prior de- -vices have the driving mechanism located beneath them adding to the overall height.

It is believed that the numerous advantages andobjects referred to at the start of this speciflcation will bereadily understood without any additional reference thereto.

In Figs. v8 and 9 a modied form of ore, rock,

and the like crushing machine has been illustrated which essentially distinguishes from the prior form in the construction of theimpulse devices which operate the crushingbowl of the machine. More particularly, in this form of the tionary tubular crushing housing icq, a tubular crushing bowl i3q within said housing and movably supported Vto be capable of moving in a circular oscillatory path similar to the crushing bowl more particularly disclosed in the prior form of the invention.V The tubular crushing bowl Ilq is cooperative with a stationary crushing head iBq. I'his crushing head extends coanuncio impulse devices A arranged around the housing'l Illrq and crushingbowl Iiq for supplying impulses of force at l points around the bowl, and means for controllingv -said impulse devices to cause the impulse devices to supply impulses of force to one side of said bowl and to travel wavellike around the bowl. 1 Each of thek impulse devices A' includes a field coil l1l and a cooperative armature 16. vThe field coils 1S are mounted upon the housing Viq at points -around the housing. The armatures 16 are mounted upon the crushing bowl and are located in betweeny the iield coils 15. The ileld coils'li are so arranged rthat adjacent' ends of adjacent ileld coils, are north and south poles. y

respectively, and all like north and south poles are disposed' in the same direction around the housing, as clearly illustrated in Fig. 8. 'I'he armatures 16 comprise armature wires, `or coils,

etc., which are mounted through projecting portions arranged upon the crushing bowl Ilq. Ihe eld coils 15 are connected up in a circuit 11 which is normally on during the operation of the machine. The armatures 1B are selectively connected in circuits 1I which are controlled by switches 18, there being one switch 19 for each circuit 1l. The circuits 18 along one side of the crushing bowl I3q-are normally on and the remaining circuits are om A mechanism is provided for turning the circuits on which are oiL and turning the circuits on which are on, in ywave-like manner to cause the impulses of force to travel wave-.like around the crushing bowl. This controlling mechanism is substantially identical to the controlling mechaiisml used in the previous form of the invenion.

More specifically, the mechanism referred to' above includes a pair of solenoids 51 and 5l for each switch 18. These solenoids are provided u with common or connected cores i9 which are connected with the handles of the switches 1B, as clearly shown in Fig. 9. The handle of each switch 18 is provided with a forked end 19a which engages a projecting pin 1Gb mounted on the core il. The arrangement is such that the solenoids 51 and 58 may be successively energized to move the handle of the switch 19 from its oil position to its on position, and' then to its "oi position, etc. I'hesolenoids 51 and 5I f are automatically controlled` by the distributor Y mechanism-described in great detail in the prior form of the invention, in Figs. 6 and '1. This `invention the crushing machine includes a stadistributor mechanism has been.v illustrated in -Fig. 9 and like numerals have been applied so that the corresponding parts of the distributor mechanism previously explained may be readily recognized. I i

The operation of this form of the inventiorris substantially similar to the prior form the only, diiierence being that the impulse devices A are controlled by the distributor mechanism to supply the required impulses of force to the crushing bowl of the machine. vMore specifically the impulse devices A' along -one side of the crushaxially of the crushing bowl identically the same 75 ing bowl Hq are functioning while the 'impulse device A' on the otherside are off. The dis tributor device rotates as previously described to cut oi one of the functioning impulsedevices, and to turn on one of the impulsedevices which was not functioning, in such a way that the impulse devices operate wave-like around the crushing bowl causing Ythe crushing bowl to travel in its circular oscillatory path previously described.

The distributor mechanism turns on the current in the armature or armature coils of the impulse devices, to set them into operation, and turns off the-current to cut them out of operation. The eld coils 15 alwayshave the electric current turned on so as to be functioning when the current is turned on in the armatures 16. Circular lines of force, indicated bythe circles 16a in Fig. 8, will be set up by the current flowing in the armatures and will distort the straight lines of force from the field coils indicated in .4.In an ore, rock and the like crushing: ma,-V

chine,` a stationary crushing head, a tubular housing surrounding said crushing Vhead and having a zone of a sphere bearing surfaceV surrounding said crushing head, a tubular crushing bowl Within said housing and surrounding saidV crushingfhead and havinga complementary zone of a sphere bearing surface `resting upon saidv bearing' surface for supporting -said crushing bowl to move in acircular oscillatory path, and means formoving said crushing bowlwave-like in said circular oscillatory path, vsaid housing having a section overhanging the Vtop edges of said bowl. f

5. In an ore, rock and the like-crushing ma.

chine, a stationary crushing head,fa tubular housing surroundingl saidl crushing. head and having a. zone ofa sphere bearing surfacefsur rounding said crushing head, a tubular crushing Fig. 8 by the lines 15a. The distorting of these 2,0 bowl within said' housing and surrounding said lines of force produces forces in the directions indicated by the arrows 80. These are the impulse forces which operate the crushing bowl I3q.

While I have illustrated and described vthe preferred embodiments' of my invention', it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by United States Letters Patent is:

1. In an ore, rock and the like crushing machine, a stationary crushing head, a tubular housing surrounding said crushing head and having a zone of a sphere bearing surface surrounding said crushing head, a tubular crushing bowl within said housing and surrounding said crushing head and having a complementary zone of a sphere bearing surface resting upon said bearing surface for supporting said Y crushing bowl'to move in a circular oscillatory path, and means for moving said crushing bowl wave-like in said circular oscillatory path.

2. In an ore, rock and the like crushing machine, a stationary crushing head, a tubular housing surrounding said crushing head and having a zone of a sphere bearing surface surrounding said crushing head, a tubular crushing bowl within said housing and surrounding said crushing head and having a complementary zone of a sphere bearing surface resting upon said bearing surface for supporting said crushing bowl to move in a circular oscillatory path, and means for moving said crushing bowl wave-like in said circular oscillatory path, the center of said zones of said bearing surfaces being above said crushing head. Y

3. In an ore, rock and the like crushing machine, a stationary crushing head, a tubular"` housing surrounding said crushing head and having a zone of a sphere bearing surface surrounding said crushing head, a tubular crushing bowl within said housing and surrounding said crushing head and having a complementary zone of a sphere bearing surface resting upon said bearing surface for supporting said crushing bowl to move in a circular oscillatory path, and means for moving said crushing bowl wave-like in said circular oscillatory path, the center of said zones of 'said bearing surfaces being above said crushing head, and coaxially with said crushing head.

crushing head and having a complementary zone of a sphere bearing surface resting uponv said bearing surface for supporting said crushing bowl to move in a circular'oscillatory path, and

means for moving said crushing bowl wave-like in said Ycircular oscillatory path, said housing having a section overhanging the top edges of said bowl, and packing material in the space between the top edges of said bowl and said overhanging section. q Y

6. In an ore, rock and the like crushing ma-v chine, a stationary crushing head, a tubular housing surrounding said` crushing head and having a zone of a sphere bearing surface surrounding said crushing head, a tubular crushing bowl within said housing and surrounding said.

crushing head and having acomplementary zone of a sphere bearingfsurface resting upon saidy bearing surface for supporting said crushing bowl to move in a circular oscillatory path, and .Y means for moving said crushing bowl wave-'likeinsaid circular oscillatorypath, said housing having a section overhanging the top edges of said bowl, said bearing surfaces being immediately adjacent said overhanging section.

'7. In an ore, rock and the like crushing machine, a stationary crushing head, a tubular.Y housing surrounding said crushing head and "plurality of impulse devices mounted around said housing and each including a cylinder station- Varily mounted on said housing, a piston slidable in said cylinder and having a piston rod extending radially towards said bowl, opposed sockets on said piston vrod and bowlv and shaped like zones of spheres, and a toggle member mounted .Y between said sockets and having ends shaped like the zones of spheres and engaging and complementary to said zones.

8. In an ore, rock and the like crushing 'machine, a stationary crushing head, a tubular housing surrounding said vcrushing head and having a zone of a sphere bearing surface surrounding said crushing head, a tubular crushing bowl within said housing and surrounding'V saldi4 crushing head and having a complementary zone of a sphere bearing surface resting upon said bearing surface for supporting said crushing bowl to move'in a circular oscillatory path, andV means for moving said crushing bowl wave-like inV said circular oscillatory path, -said housing having a section overhanging the top edgesof said bowl,V said bearing surfaces being immediately adjacent said overhanging section, said of a sphere bearing surface resting upon said bearing surface for supporting said crushing bowl to move in acircular oscillatory path, and means for movingsaid crushing bowl wave-like in said circular oscillatory path, said housing having a section overhanging thel top edges of said bowl,

said bearing surfaces` being immediately adjacent said overhanging section, said housing having another bearing surface surrounding the bottom of said bowl, and a ring loosely mounted around the bottomof said bowl and resting on said latter named bearing surface, the contacting bearv ing surfaces of said ring and housing Abeing in the shape of zones of spheres having centers substantially coinciding with vthe centers of said first named bearing surfaces.

Jams GUNNELL MALONE. 

